Age Depression prevalence Total Total Total 100.0 Total Serious depression symptoms 18.7 Total Other depression symptoms 17.2 Total No depression symptoms 64.1 Between 18 and 29 years Total 100.0 Between 18 and 29 years Serious depression symptoms 13.8 Between 18 and 29 years Other depression symptoms 13.4 Between 18 and 29 years No depression symptoms 72.9 Between 30 and 44 years Total 100.0 Between 30 and 44 years Serious depression symptoms 18.1 Between 30 and 44 years Other depression symptoms 18.9 Between 30 and 44 years No depression symptoms 63.0 Between 45 and 64 years Total 100.0 Between 45 and 64 years Serious depression symptoms 22.7 Between 45 and 64 years Other depression symptoms 18.6 Between 45 and 64 years No depression symptoms 58.7 More than 64 years Total 100.0 More than 64 years Serious depression symptoms 10.0 More than 64 years Other depression symptoms 11.9 More than 64 years No depression symptoms 78.0